CompEx Ex01-Ex04 Gas & Vapours Course - Competence Based Training

CompEx Ex01-Ex04 Gas & Vapours Course: This course will provide delegates with the required competence based training and assessment in the selection, use, maintenance, and inspection of electrical equipment in potentially explosive atmospheres, in accordance with the requirements of IEC 60079 series of relevant standards.

Course Objective:

On completion of successful assessments, candidates shall be issued with a certificate of core competence by JTL and EEMUA.

Potential Participants:

Delegates for the course should be competent electrical and/or instrument craft personnel. You are required to bring with you Photo Identification and suitable evidence that you are fully qualified in electrical or instruments or both.

Course Syllabus:

  • Area classification
  • Gas groups
  • Temperature classification.
  • I.P. ratings
  • Selection of equipment
  • Ignition sources
  • Legislation
  • Impact Protection and other environmental influences
  • Directives and Standards
  • Earthing and bonding
  • Exi, Exd, Exs, Exe, Exp, Exm, Exn, Exo and Exq
  • Wiring systems and glanding
  • Installation, Inspection, Testing & Maintenance
  • Feedback and Review


The CompEx Scheme is the recognised global scheme for the protection of oil, gas, chemical & pharmaceutical workers in both offshore and onshore activities, in fact anywhere that explosive atmospheres exist, the CompEx Scheme can provide competency validation of individuals across a range of disciplines and different hazards to help create a safer workplace.

The scheme assesses the competency of employees and contract staff who are working in environments with the potential risk of explosive atmospheres.

Originally developed by the Engineering Equipment and Materials Users’ Association (EEMUA) and JT Limited along with key industry stakeholders, JT Limited now own and operate the CompEx Scheme as the CompEx Certification Body and is internationally accredited by UKAS to ISO/IEC 17024 : 2012 Conformity Assessment – General Requirements for bodies offering Certification of Persons.

Training Support:

A C&P Engineering Services Presentation will be delivered using supporting course hand-outs. The EEMUA Publication 186 A Practitioners Handbook will be available in centre for the duration of the course. Also EEMUA Publication 214 Toolbox Guide will be issued to all candidates. Theory training is followed by practical training and assessments.


You MUST bring with you some means of photographic identification (i.e. passport, driving licence, company ID card etc.) together with your National Insurance Number.

You MUST also bring your supporting documentation/Certificates as listed on the qualifications criteria document enclosed for verification. Original copies only will be accepted. Also you will receive a CompEx registration form, please complete this and bring it with you on the first day.

All delegates must wear PPE in the workshop during the 4th and 5th day of the practical assessment of the course. You will be provided with all the necessary equipment, tools, PPE, stationery and course instruction notes to carry out the course. A toolbox EEMUA Publication Guide will also be provided. You are permitted to bring your own stationery if you wish to do so.

You will need to wear your own steel cap boots and appropriate work wear. We recommend overalls or long trousers with a long sleeved top as the practical assessments are in a workshop environment. Gloves and glasses are provided if required.


Qualifications Criteria For Entry onto CompEx Courses


This course is JTL Approved and is conducted in accordance with their training standards. A JTL approved certificate will be awarded on successful completion of the examination.

Delegates must be fully conversant with the make up of “Ex” certified glands; using steel wire armoured and multi core screened cables. The continuity and insulation resistance testing of such cables is also required.

Please Note: Failure to report promptly each day may result in you missing vital elements of the course and will prevent you from receiving your certificate. As part of the training involves communication in hazardous situations, it is essential that all participants can read, speak and understand English fluently.

C&P Training Services Ltd is part of the group of companies owned by C&P Group Holdings Ltd

Feedback from Candidates doing the CompEx01 – Ex04 Gas & Vapours Course 

I thought Dewi and Andrew were brilliant through out the course and would highly recommend C&P for EX01-EX04. Many thanks to both – September 2022

Martyn Carroll – Valero Energy

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